*{
    padding: 0;
    margin: 0;
    font-size: 14px;
    font-family: Arial, Helvetica, sans-serif;
    -webkit-user-select-: none;
}

ul{
    list-style: none;

}

#box{
    
    width: 150px;
    height: 300px;
    margin: 50px auto;
    >.menuList{
       
        h2{
            background: green;
            border: 1px solid red;
            
            text-align: center;
            cursor: pointer;
        }

        >.menuList2{
            border: 1px solid green;
            border-top: 0;
           
            text-align: center;
            display: none;
           
            
        }
        
        
    }
}